For example, our cabinetry was 40% less than our lowest proposal because I took the time to go directly to a manufacturer and become a dealer (there's a lot of mark-up in cabinets). 

You are correct, if the home has been moved more than from the factory to the site or the dealers lot to the site, then all conventional and government financing is now not available for those properties. 

I’ve noticed drug dealers always have a big wad of cash .

The "back" or "bottom" ratio includes housing costs as will as all other monthly debt. quitclaim deedA deed that transfers without warranty whatever interest or title a grantor may have at the time the conveyance is made.rate lockA commitment issued by a lender to a borrower or other mortgage originator guaranteeing a specified interest rate for a specified period of time at a specific cost.real estate agentA person licensed to negotiate and transact the sale of real estate.Real Estate Settlement Procedures Act (RESPA)A consumer protection law that requires lenders to give borrowers advance notice of closing costs.real propertyLand and appurtenances, including anything of a permanent nature such as structures, trees, minerals, and the interest, benefits, and inherent rights thereof.Realtor�A real estate agent, broker or an associate who holds active membership in a local real estate board that is affiliated with the National Association of Realtors.recorderThe public official who keeps records of transactions that affect real property in the area.

We affiliate with @Scott Smith who is on BP and was on podcast 101, he is based in TX.

On top of that, what if all of a sudden you need a new roof, or windows, or a sewer line, or the irrigation system freezes, leaks and floods the basement, or a fire guts the place and your insurance only covers some of the vacancy/rebuild costs, or a flood washes it away and you didn't have flood insurance, or your tenant stops paying and their estranged lover/stiffed drug dealer breaks in and destroys the place, or any one of a myriad possible bad things happens because you have an investment that hinges upon human behavior, and therefor needs constant baby sitting, and 5 years of your glorious $500/month is wiped out in one afternoon, and the bank takes the property?

@Jr Trotta Dislcaimer: I am in no way affiliated with the following: Housingalerts.com (Ken Wade) has two videos of the top 50 markets on YouTube.

Like many military bases the surrounding town is normally small rinky dink with civilians trying to take advantage of military members (loan sharks, auto dealers, gang members, and drug dealers)  Your properties will probably be relatively stagnant due to it only being a military base. 

A thief is a risk, but it's not as much risk as a violent offender or drug dealer.

@Nicole WalleyWell there might be some selection bias in the sample choice when asking on BP, kinda like asking a Ford dealer who builds the best trucks.